Edith Blackwell Holden (1871–1920) was a British artist and part-time art teacher, known in her time as an illustrator of children's books. Much influenced by the Arts and Crafts movement, she specialized in painting animals and plants. Holden was made famous by the posthumous publication, in 1977, of her Nature Notes for 1906 under the title The Country Diary of an Edwardian Lady. She was living in Gowan Bank, Kineton Green Road, Olton, Solihull in 1905-6 when she recorded the notes. The collection of seasonal observations, poetry, and pictures of birds, plants, and insects—which was never even considered for publication when it was composed—had the nostalgic charm of a vanished world seven decades later. It became a world-wide best seller.

Edith's mother was Emma Wearing, a Spiritualist & Unitarian, and former governess who wrote two religious books, Ursula's Childhood and Beatrice of St Mawse, published by the Society for Promoting Christian Knowledge. Her father, also a Unitarian & Spiritualist, was Arthur Holden – owner of Arthur Holden & Son's Paint Factory in Bradford Street, Birmingham, noted Town Councillor and charity worker. Edith's middle name honoured the pioneer woman physician, Elizabeth Blackwell, also a Unitarian and the Holdens' cousin. The Holden family attended the Birmingham Labour Church.

But before the death of Edith's mother Emma in 1904, the Holden family had become Spiritualists. The Holden's held regular Spiritualist seances at home in Olton, with the intention of communicating with the spirit of their deceased wife and mother. Edith and her four sisters were instrumental in assisting their father with these communications – which culminated in 1913, when Edith's father published them in his own diary, entitled 'Messages from the Unseen' – only weeks before his own death.

During the 1906–09 school years, Edith Holden taught at the Solihull School for Girls. She fashioned her Nature Notes for 1906 as a model for her students' work. Then, like her younger sisters, Holden became an illustrator. She illustrated four volumes, 1907–10, of The Animal's Friend, a magazine of the National Council for Animals' Welfare, and a number of children's books, including The Three Goats Gruff. Her paintings were often exhibited from 1890–1907 by the Royal Birmingham Society of Artists, and by the Royal Academy of Arts in 1907 and 1917.

This much is known about the nine years of her married life, until her death.

On Tuesday 16 March 1920 she was found drowned in a backwater of the River Thames, near Kew Gardens Walk. On the prior Monday morning Edith had complained to Ernest of a headache, but this was not uncommon and the matter had not been dwelt on. The main subject at breakfast had been the impending visit of some friends for Easter, to which Edith was looking forward. Ernest left for the studio at St James's Palace and Edith said that she would probably go down to the river later to see the University crews practicing.

When Ernest returned home that evening his wife was out, but the table had been laid for the evening meal; Ernest assumed that she was with friends. It was not until the next morning that he learned that her body had been found at six o'clock on the Tuesday morning. The inquest established that she had tried to reach a branch of chestnut buds. The bough was out of reach and with the aid of her umbrella Edith had tried to break it off, fallen forward into the river and drowned.